I was making great progress with knitting the Caroline Tankhttp://www.berroco.com/200/200_caroline.html until I cam to the arm holes. I have done as it says Row 1 and Row 2, then repeated it 3 more times keeping in pattern after the decreases. Now it says:

then rep Row 1 every RS row 2(2-2-2-2-0) times. Keeping 2 sts in Garter St at each side, work even in pat as established on 64(70-79-91-103-112) sts until armholes measure 7(7-7-1/2-8-8-1/2-9)” from beg, end on WS.

What do I do for WS ? is the next sequence:

RS---K2, p2 tog, work in pat as established to last 4 sts, p2 tog, k2.

WS--then K2, work in pattern until the last 2 stitches, K2

RS---then K2, p2 tog, work in pat as established to last 4 sts, p2 tog, k2.

You've worked the decreases every row and now you're just going to decrease on 2 RS rows. Yes, the WS rows here are just continue in pattern. After that you're finished with the armhole shaping and you knit even in pattern (no inc or dec). You've written out the rows correctly.
Nice looking tank. Thanks for posting the pattern link.